Well you won't be able to get all the perks in that many trees, so I think it depends whether u want to be a thieves guild stealth character, a magic using stealth character, or a dark brotherhood stealth character, and perk accordingly.
Like if you want to spend more time stealing and being sneaky, then perk lockpicking/sneak/pickpocket/speech/lightarmor. If you like killing people more, then perk sneak/alchemy/archery/lightarmor/choice of other. If you want to magic while stealthing, then u need the silent magic perk in illusion etc.